Rolling-mill.



J. PUPPE.

ROLLING'MILL.

APPLICATION FILED AUG-30. 1911. RENEWED AUG. 4, 1915-.

1,154,884. Patented Sept. 28, 1915..

s SHEETS-SHEET 1.

Patented Sept. 28, 1915.

3 SHEETS-SHEE12v 8 me Moz 446 on at JePUPPE. ROLLING MILL.

APPLICATION FILED AUG. 30, 1911. RENEWED AUG. 4, I915.

Patented Sept. 28, 1915.

3 SHEETSSHEET 3.

JOHANN PUPPE, OF BRESLAU, GERMANY.

ROLLING-MILL.

Specification of Letters Patent.

Application filed August 30, 1911, Serial No. 646,856. Renewed August 4,1915. Serial No. 43,706.

'0 all whom it may concern:

Be it known that I, J OHANN PUPPE, a subj ect of the German Emperor, andresiding at Breslau, Germany,have invented certain new and usefulImprovements in Rolling Mills, of which thefollowing is a full and clearspecification, illustrated in the accompanying drawings, the particularnovel features being more fully pointed out in the annexed claim.

My invention relates to means for shifting the rolls in rolling millsforadjusting them in proper position to roll the material fed betweenthem to proper size. In particular my invention relates to means forshifting the vertical and horizontal rolls in rolling mills for rollingstructural iron with double V shaped flanges, which form is used in theart for producing I beams with parallel sided flanges.

In the accompanying drawings Figure l is a view of the rollers shown intheir relative position when the material runs through them; Fig. 2shows a portion of the finished rolling product with V shaped flanges.Fig.

3 is a side elevation of the rolling mill frame. Fig. 4 is a verticalsection through the frame shown in Fig. on the line 0cw. Fig. '5 is aview of the frame similar to that shown in Fig. 3 with portions brokenaway.

The form of the material produced by the mill, and shown in Fig. 2,consists of the web 1 and the flanges 2, the latter having V shape, andthey are straightened out by a suitable rolling process not shown inthis application, to complete the form of an I beam with parallel sidedflanges, that is to say flanges which do not taper at their inner facestoward the edge.

When the bloom enters the rolls and is gradually rolled to size theupper horizontal roll 3, Fig. 1, is usually lowered after each pass ofthe material until the bloom, for instance in this case the I beam, hasthe desired thickness of web and flanges. The construction of the millis in this case such that the lower horizontal roll 4. remainsstationary relatively to vertical movement. To produce the intermediateproduct of an I beam of the form shown in Fig. 2 two vertical rolls 5and 6 are simultaneously employed, of the form shown in Fig. 1, and theymay be moved toward and away from the material by suitable means toproduce the desired size, in any suitable manner not shown here. Nowduring the rolling process and when the upper horizontal roll 3 islowered it is necessary that the vertical rolls 5 and 6 be lowered alsoa suitable distance so as to keep the ridge 7 and 8 of these rollsalways in line with the middle line of web 1 of the beam, sinceotherwise the flanges 2 would not be rolled of uniform .thickness aboveand below the web. Thus in this par ticular instance the vertical rolls5 and b must be lowered after each pass a distance equal to one half ofthe amount which the upper horizontal roll 3 is being lowered after thispass. To obtain this in an accurate and convenient manner is theprincipal object of the invention.

In Fig. 8 which represents a side elevation of one of the side frames ofthe mill structure, 9 is the main frame or yoke in which the rolls arejournaled. The lower horizontal roll 1 rests in fixed journal box 11,whereas the upper roll 3 is disposed in journal box 10 slidinglydisposed in frame 9. Underneath frame 9 is disposed a hydraulic cylinder12 bolted to frame 9 at 13. which cylinder-contains two pistons 14 and1(5 concentrically disposed one within the other. Piston 11 carriescross arm 15, to the outer ends of which supporting rods 18 are fastenedwhich extend upward as shown, and support journal box 10 of roll 3, andthus roll Vertical rolls 5 and 6 (of which only 5 is shown in Figs. 3and l) are each supported in a bearing block 20 also slidingly disposedin yoke 9 and supported by supporting rods '21, which are carried bycross arm 17 of piston 16. The arrange ment is preferably such that rods18 are disposed within rods 21 as clearly shown in Fig. 5.

The downward adjustment and thus the downward pressure of upperhorizontal roll 3 is controlled in the following manner: As will be seenfrom Fig. 3 in the upper part of yoke or frame 9 is disposed pressurescrew 25, threaded into a suitable bushing 26 which has the propernumber of shoulders 31 to distribute the pressure evenly over the wholelength of the bushing and thickness of the yoke. This screw bea rs withits lower end against a bolster 30 integral with upper Now in order tomove bearing blocks 20, which carry the vertical rolls 5 and 6, one

half the distance which roll 3 is moved within bushing 26 is threaded.This smaller pitch is indicated at 28 and, as shown in Fig. 3, thisscrew portion is threaded into a bushing 33 disposed in cross arm'27.The ends of arm.27 are guided in yoke 9 and to each end'is fixed a rod29, both rods ex tending freely through bearmgblock 10, as clearly shownin Fig. 5, and bearing against bearing block 20 of vertical roll 5. Thesmall pitch screwbeing cut in the same direction as'the large pitchscrew it will be seen that when screw 25 is turned to move roll 3 down acertain distance roll 5 will move down exactly one half of thisdistance.

By attaching cross arm27 to rods 29 by means of nuts 34 between whichthe arm is held in position, roll 5 may be easily initiall} adjustedbefore the rolling of the material, so that its ridge stands exactly inthe middle between horizontal rolls 3 and 4 for the reasons previouslystated. It is obvious that any other suitable proportion of movementbetween the upper horizontal -disposed laterally on each side of saidhorii I l zontal rolls and adapted to slide vertically v in said frame,adjustable supports for-said upper horizontal roll and said verticalrolls, a screw threaded in said frame and adapted when operated topositively move said journal of the upper horizontal roll downward,

the lower end of said screw being threaded into. a cross arm connectedwith said vertical rolls, the pitch of said lower end being suitablyproportioned to the pitch of the screw portion in said frame to causesaid screw'to move said vertical rolls downward with said upperhorizontal roll in fixed speed relation thereto.

. J OHANN PUPPE. Witnesses:

HENRY HASPER,

WOLDEMAR HAUPT.

